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🚨 High-Demand Product – Preorder Notice
HP TUNERS RTD 4 - BLANK is in high demand and currently shipping with a short delay. New inventory is inbound — your order will ship as soon as the next batch arrives.
Place your order now to ensure your unit is reserved and shipped first.
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HP Tuners

HP Tuners RTD 4 - Blank

HP Tuners RTD 4 - Blank

SKU: SKU:R04-PL0-00-RED

Regular price $399.99 USD
Shipping calculated at checkout.
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The HP Tuners RTD4 is the next generation of Remote Tuning Devices, built for seamless wireless tuning, diagnostics, and datalogging. Designed specifically for professional tuner workflows, the RTD4 works hand-in-hand with the HP Tuners Tune Delivery Network (TDN) to deliver Dieselr’s custom calibrations directly to your vehicle — no laptop required.

Availability & Shipping Notice

The RTD4 is currently on back order. In-stock items in your order will ship first, while the RTD4 will follow as soon as inventory arrives.

You can still get started right away: follow the post-purchase email to begin the HP Tuners E42 ECM Upgrade service process. This lets you move forward while the RTD4 ships separately.

Key Features:

  • Supports 300+ Vehicle Controllers – Compatible with the latest HP Tuners-supported platforms, including CAN and VPP protocols.

  • Wireless Tuning via TDN App – Flash tunes, send datalogs, and receive updates right from your iOS or Android device.

  • Diagnostics Anywhere – Read and clear DTCs on the go.

  • Faster Transfer Speeds – Built-in Wi-Fi hardware (enabled with future firmware update) for rapid file delivery and logging.

  • Secure Workflow – Customers cannot access VCM Editor, ensuring calibration integrity and tuner IP protection.

  • Fully Compatible with VCM Scanner – For complete diagnostics and logging functionality.

How It Works:

  1. Read your vehicle’s data using the RTD4.

  2. Send files to Dieselr’s tuning team via the free TDN app.

  3. Receive your custom calibration.

  4. Flash directly from your smartphone.

Why Choose the RTD4 from Dieselr?
We don’t just sell you the device — we connect you to our tuning network for precise, dyno-tested calibrations built for real-world drivability and performance. Whether you’re on the track, trail, or highway, the RTD4 gives you professional-grade tuning power in your pocket.

Note: Base price is for the RTD4 device only. HP Tuners adapter cables, credits, and tuning are sold separately. See Dieselr’s tuning section to bundle with your specific vehicle.

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